Simultaneous destruction of Nickel (II)-EDTA with TiO2/Ti film anode and electrodeposition of nickel ions on the cathode
文献类型：期刊论文
| 作者 | Zhao, Xu ; Guo, Libao ; Hu, Chengzhi ; Liu, Huijuan ; Qu, Jiuhui |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2014 |
| 卷号 | 144期号:1页码:478-485 |
| 关键词 | Heavy metal Ni-EDTA Photoelectrocatalysis Electrodeposition |
| ISSN号 | 0926-3373 |
| 中文摘要 | Ethylenediaminetetraacetic acid (EDTA) forms stable complexes with toxic metals such as nickel. A combined photocatalytic-electrochemical system using TiO2/Ti plate as anode and stainless steel as cathode achieves the simultaneous decomplexation of Ni-EDTA and recovery of nickel. Ni-EDTA was efficiently destroyed in photoelectrocatalytic process in comparison with individual photocatalytic and electro-oxidation process. At 60 min, removal efficiencies of Ni-EDTA were 75%, 12%, and 5%, respectively. At 180 min, the removal efficiency of Ni-EDTA in the photocatalysis and electrolysis processes is only 21% and 18%, respectively. By contrast, nearly 90% Ni-EDTA is removed in the photoelectrocatalytic process. The recovery percentage of nickel was determined to be 45%, 21%, and 5% in the photoelectrocatalysis, electrolysis, and photocatalysis process, respectively. The deposition of nickel ions at the cathode was confirmed by scanning electron microscopy analysis and the nickel species were identified via X-ray photoelectron spectra as nickel with zero value. The removal of Ni-EDTA and recovery of nickel ions increased with the current density and favored at acid conditions. Intermediates detected using a capillary electrophoresis and a high performance liquid chromatography includes Ni-NTA, glycine, maleic acid, glycolic acid, formic acid, acetic acid, oxalic acid, and oxamic acid were identified. The decomplexation pathway of Ni-EDTA was proposed. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000327686200057 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9602]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao, Xu,Guo, Libao,Hu, Chengzhi,et al. Simultaneous destruction of Nickel (II)-EDTA with TiO2/Ti film anode and electrodeposition of nickel ions on the cathode[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,144(1):478-485. |
| APA | Zhao, Xu,Guo, Libao,Hu, Chengzhi,Liu, Huijuan,&Qu, Jiuhui.(2014).Simultaneous destruction of Nickel (II)-EDTA with TiO2/Ti film anode and electrodeposition of nickel ions on the cathode.APPLIED CATALYSIS B-ENVIRONMENTAL,144(1),478-485. |
| MLA | Zhao, Xu,et al."Simultaneous destruction of Nickel (II)-EDTA with TiO2/Ti film anode and electrodeposition of nickel ions on the cathode".APPLIED CATALYSIS B-ENVIRONMENTAL 144.1(2014):478-485. |
入库方式： OAI收割
来源：生态环境研究中心
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